Question

determine which is a better rate.
a) ground beef: $8.40/kg or $3.99/lb.

Explanation:

Step1: Recall unit conversion (1 kg = 2.20462 lb)

To compare the two rates, we need to convert one unit to the other. Let's convert \$8.40/kg to \$/lb. The formula for conversion is: \(\text{Rate in \$/lb} = \text{Rate in \$/kg} \times \frac{1\ \text{kg}}{2.20462\ \text{lb}}\)

Step2: Calculate the converted rate

Substitute the value: \(\frac{8.40}{2.20462} \approx 3.81\) (rounded to two decimal places)

Step3: Compare the two rates

We have two rates: \$3.81/lb (converted from \$8.40/kg) and \$3.99/lb. Since LXI0, the rate of \$8.40/kg is better.

Answer:

The rate \(\$8.40/\text{kg}\) (which is approximately \(\$3.81/\text{lb}\)) is a better rate than \(\$3.99/\text{lb}\).